import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        // 注意 hasNext 和 hasNextLine 的区别
        int n = in.nextInt();
        int[] arr = new int[n];
        int max = 0;
        for (int i = 0; i < n; i++) {
            arr[i] = in.nextInt();
            max = Math.max(max,arr[i]);
        }
        boolean flag = true;
        for (int i = 0; i < n; i++) {
            if(max % arr[i] != 0){
                flag = false;
                break;

            }
            int x = max / arr[i];
            if((x & x - 1) != 0){
                flag = false;
                break;
            }
        }
        if(flag) System.out.println("YES");
        else System.out.println("NO");
    }
}